Circuit Breaker Reference

Data record tests.sf6-gas-quality.equipment.breaker-sf6.acceptance

Verified 2026-10-29 Confidence: High

SF6 Gas Quality is specified for sulfur hexafluoride circuit breakers in acceptance testing at clause 7.6.4.A.6 of ANSI/NETA ATS-2025. The clause calls for a sample of the SF6 gas to be drawn and tested where the breaker provides for sampling, without breaking the seal of a sealed-for-life interrupter.

Value: sulfur hexafluoride circuit breakers

ProvenanceANSI/NETA ATS-2025 supports data record tests.sf6-gas-quality.equipment.breaker-sf6.acceptance, which is cited on the entry SF6 Gas Quality.SOURCEANSI/NETA ATS-2025ANSI/NETA ATS-2025Licensed standard, clause 7.6.4.A.6DATA RECORDtests.sf6-gas-quality.equipment.breaker-sf6.acceptancetests.sf6-gas-quality.eq..Verified 2026-10-29ENTRYSF6 Gas QualitySF6 Gas QualityNo revisions
Provenance. Where this record comes from and where it is used: the cited source, the record itself and the entry that cites it.
Provenance: the chain from source to entry.
StepItemDetail
SourceANSI/NETA ATS-2025Licensed standard, clause 7.6.4.A.6
Data recordtests.sf6-gas-quality.equipment.breaker-sf6.acceptanceVerified 2026-10-29
EntrySF6 Gas QualityNo revisions
Subject
SF6 Gas Quality (Test methods)
Kind
Equipment fact
Source
ANSI/NETA ATS-2025, clause 7.6.4.A.6, Acceptance Testing Specifications for Electrical Power Equipment and Systems, NETA. Publisher page for ANSI/NETA ATS-2025Publisher information page
Also stated in
  • Stated independently by FIST 3-16, section 9.8.3, page 84 (May 2024).
    Read the reference passage

    9.8.3 Fill Equipment SF6 Gas Compartment

    "It is very important to refill the equipment with clean, dry SF6 gas. The more impurities that are in the SF6 gas, the more hazardous by-products will be created. [Test the SF6 gas prior to filling the breaker. The gas must meet the recommended levels of impurities as shown in Table 9.1 for reclaimed SF6 gas or Table 9.2 for new gas.] [SF6 gas shall not be added to a gas insulated circuit breaker while the circuit breaker is energized.]"

    FIST 3-16, section 9.8.3, page 84, May 2024. Agency copy of FIST 3-16

    The current standard governs; this passage is a public-domain description of the practice dated May 2024.

  • FIST 4-7, section 6.1.53.1, page 144 (August 2023).
    Read the reference passage

    6.1.53.1 Gas Pressure Test

    "Gas pressure and density testing verifies the correct amount of insulating gas, commonly SF6 is in the system at the correct pressure and density which ensures the circuit breaker interrupter will be able to properly quench and interrupt electrical current in the arc produced when the circuit breaker opens under load or fault. SF6 gas also plays an important role in the mechanical performance of the circuit breaker."

    FIST 4-7, section 6.1.53.1, page 144, August 2023. Agency copy of FIST 4-7

    The current standard governs; this passage is a public-domain description of the practice dated August 2023.

History

Every recorded change to this data record, oldest first.
DateChange
2026-10-29created

Cite this page

Cite the governing standard for the fact itself; cite this page as the finding aid.

"Data record tests.sf6-gas-quality.equipment.breaker-sf6.acceptance." Circuit Breaker Reference. 2026-10-29. https://www.circuitbreakerreference.com/data/tests.sf6-gas-quality.equipment.breaker-sf6.acceptance/.